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OpenStack alternatives: 2 apps ranked by verified data

Facts checked Nov 1, 2026AppBreakup editorialHow we rank

Common reasons people leave OpenStack: complex to deploy, operate and upgrade, and needs a dedicated team or a paid distribution for production. We ranked 2 alternatives by how directly each one replaces OpenStack, then by reviews, real visits and how recently each app's facts were checked against its own website. Proxmox VE currently ranks first.

Quick comparison

#AppPricingOpen sourcePlatformsVerified factsScore
1Proxmox VE logoProxmox VEOpen sourceYesSelf-hosted, Web4 of 466.5
2Apache CloudStack logoApache CloudStackOpen sourceYesSelf-hosted, Web4 of 462.6
  1. Proxmox VE logo

    1. Proxmox VETop pick

    Best for: Businesses leaving VMware and home-lab users who want VMs and containers with a web UI

    Open sourceSelf-hostableSelf-hosted, Web

    66.5

    score / 100

    Why switch from OpenStack

    Far simpler to install and run, with a web UI for VMs and containers on small to mid-size clusters.

    Pros

    • Free to use with all features, no edition limits
    • VMs (KVM) and containers (LXC) on one platform
    • Built-in clustering, HA, backups, ZFS and Ceph
    • Simple per-socket subscriptions with no per-core licensing

    Cons

    • Enterprise update repository and support need a paid subscription
    • Limited multi-tenant self-service compared with OpenStack
    • Support tickets are capped per year on lower tiers
    Visit Proxmox VE Details and reviews
    How this score is calculated
    Editorial fit ×0.3100
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.1585
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is Proxmox VE a good OpenStack alternative?

    Verified facts

    4 of 4 verified
    Open source
    Yes
    Checked Oct 29, 2026proxmox.com(opens source in a new tab)
    Virtualization
    KVM and LXC
    Checked Oct 29, 2026proxmox.com(opens source in a new tab)
    Community subscription
    €120/year per CPU socket
    Checked Oct 29, 2026proxmox.com(opens source in a new tab)
    Pricing basis
    Per socket, not per core
    Checked Oct 29, 2026proxmox.com(opens source in a new tab)
  2. Apache CloudStack logo

    2. Apache CloudStack

    Best for: Hosting providers and MSPs who need a multi-tenant IaaS cloud without OpenStack's complexity

    Open sourceSelf-hostableSelf-hosted, Web

    62.6

    score / 100

    Why switch from OpenStack

    A turnkey IaaS stack with a built-in UI and EC2-compatible API, easier to run with a small team.

    Pros

    • Turnkey stack with UI, API, accounts and billing data built in
    • Works with VMware, KVM and XenServer hosts
    • EC2 and S3-compatible API for hybrid setups
    • Free under the Apache License 2.0

    Cons

    • Smaller ecosystem and vendor community than OpenStack
    • Commercial support only through third parties
    • More than a small business with a few servers needs
    Visit Apache CloudStack Details and reviews
    How this score is calculated
    Editorial fit ×0.387
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.1585
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is Apache CloudStack a good OpenStack alternative?

    Verified facts

    4 of 4 verified
    License
    Apache-2.0
    Checked Nov 1, 2026github.com(opens source in a new tab)
    Hypervisors
    VMware, KVM, XenServer, Xen
    Checked Nov 1, 2026cloudstack.apache.org(opens source in a new tab)
    AWS compatibility
    EC2 and S3 API
    Checked Nov 1, 2026cloudstack.apache.org(opens source in a new tab)
    Type
    IaaS cloud platform
    Checked Nov 1, 2026github.com(opens source in a new tab)

The best OpenStack alternative for…

The highest-ranked app in this list for each need.

Proxmox VE logo

Best OpenStack alternative for most people

Proxmox VE

Far simpler to install and run, with a web UI for VMs and containers on small to mid-size clusters.

Apache CloudStack logo

Best OpenStack alternative for a free option

Apache CloudStack

A turnkey IaaS stack with a built-in UI and EC2-compatible API, easier to run with a small team.

Proxmox VE logo

Best OpenStack alternative for open source

Proxmox VE

Far simpler to install and run, with a web UI for VMs and containers on small to mid-size clusters.

Proxmox VE logo

Best OpenStack alternative for self-hosting

Proxmox VE

Far simpler to install and run, with a web UI for VMs and containers on small to mid-size clusters.

Proxmox VE logo

Best OpenStack alternative for working in the browser

Proxmox VE

Far simpler to install and run, with a web UI for VMs and containers on small to mid-size clusters.

OpenStack alternatives: common questions

What is the best alternative to OpenStack?

Proxmox VE ranks first right now. Far simpler to install and run, with a web UI for VMs and containers on small to mid-size clusters.

Is there a free alternative to OpenStack?

Yes. Proxmox VE (open source) and Apache CloudStack (open source) have a free option. Check each app's verified facts for current plan limits.

Is there an open-source alternative to OpenStack?

Yes: Proxmox VE and Apache CloudStack. Proxmox VE and Apache CloudStack can also be self-hosted.

Why do people switch from OpenStack?

The complaints we hear most: complex to deploy, operate and upgrade; needs a dedicated team or a paid distribution for production; too heavy for a handful of servers.

How is this list ranked?

Every app is scored with the same published formula: how directly it replaces OpenStack, reviews (weighted by verification), visits from AppBreakup, how recently its facts were checked against its own website, and reader votes.